Oil-press box.



No. 727,896. PATENTED MAY 12,1903.

w. P. & w. K. GALLAHAN & T. DE ARMON.

W. K. GALLAHAN, EXEOUTOB. OF W. P. CALLAHAN, DEGD.

' OIL PRESS BOX.

APPLICATION FILED APR. 27, 1901.

no MODEL. ,7 2 sums-sum 1.

i I I y l n o n o n WITNEEEETEI. INVEHTE] FSL.

m0] Ann 3 NE( No. 727,896. 7 PATENTED MAY 12, 1903.

W. P. & w. K. GALLAHAN & T. DE ARMON.

W. K. GALLAHAN. EXEGUTOR 01 W. P. GALLAHAK, DEO'D.

OIL PRESS BOX.

APPLICATION FILED APR. 27, 1901 2 SHEETS-SHEET 2.

N0 MODEL.

UNITED STATES- PAT NT Patented May 12, 1903.

OFFICE.

WILLIAM P. CALLAHAN, WILLIAM K. CALLAHAN, AND THOMAS DE ARMON,

OF DAYTON, OHIO; WVILLIAM K. CALLAH'AN'EXEOUTOR OF SAID \VIL- LIAM P. GALLAHAN, DECEASED.

QlL-PRESS BOX.

SPECIFICATION forming part of Letters Patent No. 727,896, dated May 12, 1903.

Application filed April 27,1901. Serial No. 57,745. (No model.)

10 all whom it may concern;

Be it known that we, WILLIAM PICAL L A- reference marked thereon, which form a part 1 5 of this specification.

Our invention relates to improvements in oil-presses; and it consists of certain improvements in the oil-press shown and described in Letters Patent No. 62l,897, grant.ed to our? selves March 28, 1899.

Heretofore' considerable annoyance resulting in serious damage has attended the op eration. of oil-presses, occasioned in many instances, no doubt, through carelessness of operatives who allow the press boxes to be brought together under pressure when someof the boxes were empty or not entirely filled with meal. This permits the angle-irons form;

ing the surrounding walls of'the ram-blocks 0 to come in contact with the press-plates and cause such press-plates to bend to such an extent as to render the press practically worthless as soon as such an improper operation of the press was permitted.

3 5 It will therefore be -understood that the present invention relates to certain structural variations between the ram-blocks and their surrounding walls whereby the said surrounding walls are not permitted at any time 40 to come in contact with the press-plates.

Preceding a detail description of our invention reference is made to the accompanying drawings, of which V Figure l is a plan view of a press-box, a portion of the perforated metallic mat being broken away to show the grid or grate. Fig. 2 is a partial cross-sectional elevation of Fig. 1.

Similar reference characters indicate corresponding parts in-bo th views of the drawso lugs.

Each ram-block is composedof longitudinal side bars A and intervening parallel bars A, which provide a series of'intervening spaces l3, extending through the length of said block. 5 The said spaces form oil-passages which receive oil through the perforations bin the mats E. v

C designates steel press-plates which form the foundation of each of the press-boxes.

i In a proper operation of the machine it is absolutely necessary that the boxes in which 'the meal is contained retain their proper shape.

In other words, the bending or warping of such press-plates will render said machine practically worthless/for the purposes.

B designates angle-irons which are secured to the lower sides of the press-plates O by means of rivets D. These angle-irons each have a flat inner surface extending vertically which form inclosing walls for the pressboxes when the latter are elevated under pressure, and the horizontal flanges of the said angle-irons are held rigidly against the projecting portions of the flat press-plate O beyond the sides of the ram=block, thus strengthening or reinforcing these portions of the plates to prevent the bending or warping, which it is the purpose of the present invention to obviate. It is essential that the depth of the grid or grate forming the ramblock be greater than the depth of these irons or side walls in order that the pressplates will not be permitted to come in contact with said angle-irons. In other words, should the boxes be brought together withv one or more of such boxes containing less meal than is sufficient to fill it the ram-block will come in contact with the metallic impact-plate H, of which there is one attached 9 to the lower side of each of the press-plates C. The importance of this structural variation between the depth of the ram-blocks and the depth of the angle-irons forming surrounding side walls will be fully appreciated 9 5 when it is understood that in the operation of an oil-press it frequently happens even with careful attention that one or more pressbending of the press-plates is avoided and the press may be operated by unskilled labor withoutendangering the parts.

Having described ourinvention, we claim In an oil-press, the combination of flat pressed plates, ram-blocks mounted on the press-plates and arranged to leave a projection of the plates beyond the blocks, and wallforming angle-irons projecting from the lower sides of the plates and having horizontal portions fitting against and rigidly held to the said portions of the plates which project beyond the ram-block to provide for strengthening and reinforcing the same, each set of said wall-forming irons also having the downwardly-proj ectin g flanges permanently of less projection or width than the depth of the complementary ram-block cooperating therewith, said relation between the Wall-forming irons and the ram, and also between the horizontal flanges of the irons and the projecting portions of the plates providing means for preventing buckling or bending of the pressplates under pressure. In testimony whereof We affix our signatures in presence of two Witnesses.

WILLIAM P. OALLAHAN. WILLIAM K. OALLAHAN. THOMAS DE ARMON. Witnesses:

R. J. MOOARTY, G. M. THEOBALD. 

